Home / 105,447.04-145,516.91-57,700.39

Finding the Fourth Proportional to 105,447.04, 145,516.91 and 57,700.39

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Solution

The fourth proportional to 105,447.04, 145,516.91 and 57,700.39 is: 79,626.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,447.04 : 145,516.91 = 57,700.39 : x
  2. Step 2: Convert to fraction form
    105,447.04/145,516.91 = 57,700.39/x
  3. Step 3: Cross multiply
    105,447.04x = 145,516.91 × 57,700.39
  4. Step 4: Simplify right side
    105,447.04x = 8,396,382,458.59
  5. Step 5: Solve for x
    x = 8,396,382,458.59/105,447.04
  6. Step 6: Final answer
    x = 79,626.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.